The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200603-23
(NetHack, Slash'EM, Falcon's Eye: Local privilege escalation)

NetHack, Slash'EM and Falcon's Eye have been found to be incompatible
with the system used for managing games on Gentoo Linux. As a result,
they cannot be played securely on systems with multiple users.

Impact :

A local user who is a member of group 'games' may be able to modify the
state data used by NetHack, Slash'EM or Falcon's Eye to trigger the
execution of arbitrary code with the privileges of other players.
Additionally, the games may create save game files in a manner not
suitable for use on Gentoo Linux, potentially allowing a local user to
create or overwrite files with the permissions of other players.

Workaround :

Do not add untrusted users to the 'games' group.

See also :

https://security.gentoo.org/glsa/200603-23

Solution :

NetHack has been masked in Portage pending the resolution of these
issues. Vulnerable NetHack users are advised to uninstall the package
until further notice.
# emerge --ask --verbose --unmerge 'games-roguelike/nethack'
Slash'EM has been masked in Portage pending the resolution of these
issues. Vulnerable Slash'EM users are advised to uninstall the package
until further notice.
# emerge --ask --verbose --unmerge 'games-roguelike/slashem'
Falcon's Eye has been masked in Portage pending the resolution of these
issues. Vulnerable Falcon's Eye users are advised to uninstall the
package until further notice.
# emerge --ask --verbose --unmerge 'games-roguelike/falconseye'

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